Sitting on the outskirts of Beijing, Steven Holl’s eco city-within-a-city is now accepting more than 2,500 new residents. Featured previously on Inhabitat, Holl’s Linked Hybrid Development is a completely self-contained housing complex that features of one of the largest geothermal heating and cooling systems in the world, serving the development’s entire 6.18 hectares (15.27 acres). Five semi-public recreational areas wind their way through the compound, offering residents green space in the midst of high density living. The awards are already coming in and the Linked Hybrid complex has been dubbed the ‘best tall building’ by the Council on Tall Buildings and Urban Habitat (CTBUH).